Tools quiz

More questions about Tools

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   What toothed hand tool slices through pieces of wood or thin metal?

   Answer: Saw

   Why: Japanese saws cut on the pull stroke, so the blade stays in tension and can be about half as thick as a Western push saw's.

2. 2 Medium

   Why is a bubble of air used inside a spirit level?

   Answer: To identify the highest point

   Why: The glass vial curves slightly upward, so the bubble sits centred only when the tube is level; Melchisedech Thevenot described it in 1661.

3. 3 Hard

   Why is the lathe historically called the mother of all machines?

   Answer: It can produce its own parts

   Why: Around 1800 Henry Maudslay gave the lathe a geared lead screw, so it could cut identical screw threads and turn the parts other machines needed.

4. 4 Easy

   How does a plunger dislodge a drain clog?

   Answer: Suction

   Why: Flanged plungers include an extra fold-out rubber collar that creates a tight seal inside the curved drain of a toilet.

5. 5 Medium

   Why was the Allen wrench first developed for factory machines?

   Answer: To eliminate snagging hazards

   Why: Protruding square-head set screws on rapidly spinning drive shafts regularly caught workers' loose clothing, causing severe workshop injuries.

6. 6 Hard

   What is the primary function of a cobbler's last?

   Answer: To shape leather footwear

   Why: Pliny the Elder tells of a shoemaker who criticised a painting by Apelles, which gave us the proverb cobbler, stick to your last.